Wood treating tool



Nov. 4, 1941. P, F EVANS 2,261,756

WOOD TREATING TOOL F'iled July 5, 1939 lll 4 A 7 A2a' PAUL F. EVANS Patented Nov. 4, 1941 .UNETED STATES PATT OFFIQE- Woon TREATING rrooL Paul F. Evans, Washington, D. C.

Application July 5, 1939, serial No. 282,905

claims. (o1. .2i-79.)

This invention relates to a tool and method applicable to wood treating and more particularly for impregnating articles formed of wood such as telephone poles, railroad ties and piles with a preservative such as creosote.

It is common practice to impregnate wooden articles with various preservatives, and after the article has been delivered to its destination, it is drilled for receiving bolts, reinforcing bars and various forms of brace bars. After such holes are drilled, the untreated walls thereof are exposed to the atmosphere and are subjected to numerous deleterious conditions and said untreated bore holes allow the intrusion of insects to the core of the wooden article.

The above yobjections and disadvantages are overcome by providing a tool cap-able of being inserted in the bore hole whereby a preservative such as creosote under pressure may be forced into the bore hole and impregnate the walls thereof.

'Ihe primary object of this invention is to provide a device including an elongated threaded tubular nozzle member which can be inserted in the bore hole of a wooden article and sealed at each end so that a wood preservative may be forced into the hole under pressure and impregnate the inner walls of the hole.

A further object of this invention is to provide a device of the above mentioned character having novel conical sealing means which are movable toward each other to insure a tight joint between the impregnating tubular nozzle member andv the edges of the wood article at each end of the bore hole.

A still further object is to provide sealing means which is reversible so that wooden articles of diierent shapes may be accommodated.

Other objects and advantages of the invention will become apparent during the course of the following detailed description of the accompanying drawing wherein:

Figure 1 is a side elevational view of the device embodying the invention illustrating the same in position in a bore hole of a wooden article' for receiving a preservative under pressure,

Figure 2 is a longitudinal cross sectional view of the tool illustrating sealing members carried on each end thereof,

Figure 3 is a vertical cross sectional view taken on lines 3-3 of Figure 1 looking in the direction of the arrows illustrating one of the conical sealing members,

Figure 4 is a vertical cross sectional view taken on lines 4 4 of Figure 1 looking in the direction 55 of the arrows illustrating in detailthe discharge orifices in the elongated nozzle member,

Figure 5 is a vertical cross sectional view taken on lines 5-5 of Figure 1 looking in the direction of the arrows illustrating the opposite sealing member,

Figure 6 is a side elevational view of the device showing the same applied to telegraph pole and extending through the stringers of the pole, and,

Figure '7 is an enlarged cross sectional view showing in detail the manner of sealing when the truncated cone sealing member is reversed.

In the drawing, wherein for the purpose of illustrating the invention and wherein like reference characters will be employed to designate like parts throughout the same, the reference character 5 will generally be employed to designate an ,elongated Atubular nozzler havinga central bore 6 and a series of spray orifices 1.

One end of the tubular nozzle is closed by means of a screw plug 8 threaded in place and which may be removed for the purpose of cleaning the central bore 6. The opposite end of the tubular nozzle is provided with a screw threaded nipple 9 for accommodating a hose connection I0 on the end of a pipe line II which is adapted to supply a preservative liquid such as creosote to the tubular nozzle.

Each end of the tubular nozzle 5 is externally screw threaded as at I2 and I3 for receiving nuts I4 and I5 respectively and the nut Ill` is provided with hexagonal facets for receiving a wrench or other gripping tool. Extending axially from the nut I4 is a truncated cone IB adapted to engage the edges of a bore hole formed in a telegraph pole or railroad tie I8 into which the tubular nozzle has been-inserted for delivering a preservative liquid.

The opposite nut I5 is provided with a similar truncated sealing cone I9 capable of sealing the opposite end of the bore hole and said nut I5 has embedded therein, the inner ends of handles 20 fastened in sockets 2| which are diametrically arranged. One of the handles 20 is provided with hooks 22 which can be used for suspending the device when not in use or may be used to anchor the handle against rotation while the nut I 4 is being tightened in place.

It will be noted, that by providing the truncated sealing cones I6 and I9, bore holes of various sizes can be treated with a. preservative liquid and that a tool for each size bore hole will not be necessary.

On the opposite radial faces of the nuts I4 and I5 there is formed annular sealing ribs 23 and 24 respectively which are used as shown in Figures 6 and 7 to engage wood stock such as telegraph pole stringers 25 placed on opposite faces 26 of a telegraph or telephone pole 21. The annular sealing ribs 23 and 24 are slightly sharpened to bite or cut into the wood stock and effect a tight seal as at 28 on the face of the wood stock.

By reversing the nuts I4 and I5 from the position shown in Figure 1 to the position shown in Figures 6 and 7, a wide range of work may be accomplished and the sealing members may be applied to curved as well as plane surfaces with,

equally good results.

It is to be understood that the form of the invention herewith shown and described is to be taken a preferred embodiment of the same and that various changes in the shape, size and arrangement of parts without departing from the spirit of the invention or the scope of the subjoined claims.

I claim: Y

1. A tool for impregnating bore holes in wooden articles with a preserving solution, comprising an elongated tubular externally threaded nozzle adapted to be inserted in the bore hole, sealing means threaded on the nozzle adapted to be threaded toward each other to form a liquid seal and said nozzle being provided with a series of spray orifices between the sealing means for allowing the passage of a preservative liquid thereto.

2. A tool for impregnating bore holes in wooden articles with a preservative solution, comprising an elongated tubular lexternally screw threaded nozzle provided with spray orifices therein, sealing nuts threaded on the nozzle in spaced relation, a circular sealing flange on one face of said sealing nuts, a frustro-conical shaped sealing face on thev opposite side of said sealing nuts, a plug in one end of said screw threaded nozzle and means for supplying a preservative solution to the other end of said nozzle.

3. A tool for impregnating bore holes in wooden articles with a preservative solution, comprising an elongated tubular externally screw threaded nozzle provided with spray orifices therein and having one end thereof closed, sealing nuts threaded thereon in spaced relation, a frustro-conical shaped sealing face on each sealing nut and means for supplying a preservative solution to the tubular nozzle.

4. A tool for impregnating bore holes of Wooden articlesvwith a preservative solution, comprising an elongated tubular externally screw threaded nozzle provided with spray holes therein and having one end thereof closed, sealing nuts threaded thereon in spaced relation,y a frusto-conical shaped sealing face on each sealing nut, an annular sealing rib on the opposite radial face thereof, whereby a sealing contact may be made with the radial or axial face of the bore hole by reversing the position of the sealing nuts on the elongated nozzle and means for supplying a preservative solution under pressure to the tubular nozzle.

5. A tool for impregnating bore holes of wooden articles with a preservative liquid, comprising an elongated tubular screw threaded nozzle having spray orifices therein and having one end thereof closed, sealing nuts threaded thereon in spaced relation, annular sealing ribs formed on the faces of the sealing `nuts and means for supplying a preservative solution to the tubular nozzle.

PAUL F. EVANS. 

